Hand tool



Jan. v28, 1941.

w. P. WESTA ETAL HAND 'rooi Filed July 25, 193s By w. OPP. f//

/TTOR/VEM Patented Jian. 28, 1941 @PATENT OFFICE HAND TOL William i.West, Garden Grove, and Fred W. Opp, Costa Mesa, Calif.

Application July 25, 1938, Serial No. 221,120

d Claims.

This invention relates to a hand tool, whereby the operator can saw,chisel, drill, hammer, and the like, .the device being small and compactand-adapted to be held inthe hand of the operator.

An object cf `our invention is to provide a simple and effective handtool, which is actuated from asuitable source of power, such as anelectrical moto-r, and `which can be used as a saw, a

drill, a hammer, or a chisel, as well as various other appliances, bychanging the tools in various chucks provided on the tool.

Another object of our invention is to provide a novel means ofsupporting the tool on the object 16 worked upon, thereby enabling theoperator to saw, bore or chisel with greater accuracy.

A feature of our invention resides in the novel means of releasingcertain portions of the tool from operation while other parts of Athetool are being used.

Other objects, advantages and features of invention may appear from theaccompanying drawing, the subjoined detailed description, and theappended claims.

In the drawing Figure 1 is a transverse sectional View of our cuttingtool, with parts of the vibrating shaft broken away to show interiorconstruction.

Figure 2 is a sectional View taken on line 2 2 of Figure ,1.

Figure 3 is a top plan View of our tool.

Figure 4 is an end View of the same.

Referring more particularly to the drawing, the numeral I indicates atool body, preferably of suitable size to be carried in the hand of theoperator. The body I is provided with a transverse and substantiallyhorizontal bore 2, and a second substantially vertical bore 3, whichinter- 40 sects the bore t. A vibrating shaft #l is mounted in the bore2, and preferably supported on antifriction bearings 5 and 6. Driveshaft 1 is mounted in the bore 3, and the means of driving this shaftwill be further described.

45 A cover 8 is detachably secured to the body I,

and the purpose of this cover is to enable the internal parts to beuncovered for purposes of repair, and the like.

Chucks 9, 9 are mounted on each end of the 50 shaft d, and a suitabletool can be mounted in either of these chucks. The tools may consist ofa saw It, a chisel II, as well as other tools or devices.

Either or both ends of the shaft It may be de- 55 tached from theremainder of the shaft by a joint I2, the detachable end of the shaftbeing heldin an attached position by a screw I3. Thus, either or Abothends of the shaft 4 may be removed, together with the chuck 9, ifanother-part of the tool is being used.

The shaft 'I is driven from a suitable source of power, such as theflexible shaft I 4, extending from an electrical motor, or the like. Theflexible shaft It is attached to the lower end of the shaft 'I by theslip joint It. A fitting It screws onto 10 the body l, thus holding theflexible shaft I4 in engagement with the shaft An eccentric Il ismounted on the shaft "I, and fits in the recess I8 in the shaft 4. Anannular bearing i9 is arranged between the eccentric II 15 and the shaftThus, as the eccentric I'I is rotated, a vibratory motion will beimparted to the shaft il. The eccentric Il is splined or grooved toreceive lugs 2t on the shaft I, thereby providing a driving connectionbetween the eccen- 20 tric and the shaft. The shaft 'I is movable withinthe body of the tool and relative to the eccentric Il. Thus1 the lugs 20can be moved to engage or disengage the eccentric.

The shaft 'i is adjusted vertically in the body 25 of the tool and isheld in one of two positions between spring pressed pin 2l, whichextends between spaced annular rings 22. By pulling the pin 2|outwardly, the shaft l can be adjusted in the body of the tool to eitherdrive the eccentric 30 Il or to rotate without moving the eccentri-c andthe shaft 4.

A tool chuck 23 is provided on the upper end of the shaft 'I for thepurpose of receiving a drilling tool, or the like. When the drillingtool is being used, the shaft 1 is disengaged from the eccentric I"I.

The chuck 23 is threaded into the upper end of the shaft l, as shown at24, and thus this chuck can be removed when desired. 40

One or more rests 25 are adjustably mounted in the body I and, ifdesired, these rests can be fixed by means of a set screw 2t. This setscrew is threaded into the body and bears against the rest, therebyholding the rest in fixed position. The set screw 2t* may be loosened ifdesired, and in this event the coil spring 21 yieldably presses the restagainst the object to be worked upon.

A foot 23 is pivotally mounted on the outer end of the rest 25 for thepurpose of engaging 50 contour of the object worked upon. As shown inFigure 3, the rest can be provided on either side of the body I.

Having described our invention, we claim:

l. A hand tool, comprising a body, a shaft .55

mounted for oscillating movement in the body, a cam engaging the shaft,a drive shaft, drive means for the drive shaft, disengageable meansconnecting the drive shaft and the cam, a tool chuck on the first namedshaft, and a tool chuck on the drive shaft.

2. A hand tool, comprising a body, a shaft mounted for oscillatingmovement in the body, a cam engaging the shaft, a drive shaft, drivemeans for the drive shaft, disengageable means connecting the driveshaft and the cam, a tool chuck on the rst named shaft, a tool chuck onthe drive shaft, a detachable tip on the end of the drive shaft, saiddetachable tip carrying the chuck on the drive shaft.

3. A hand tool, comprising a body, a vibrating shaft mounted in thebody, tool chucks on the shaft, said shaft having recess formed therein,a cam mounted in the recess, a drive shaft, means to rotate the driveshaft, said cam having splines therein engageable by the drive shaftwhereby said cam is rotated with the drive shaft, said drive shaft beinglongitudinally slidable to engage or disengage the splines in the cam,and latch means engaging the drive shaft to hold said drive shaft intoor out of engagement with the cam.

4. A hand tool, comprising a body, a Vibrating shaft mounted in thebody, tool chucks on the shaft, said shaft having recess formed therein,a cam mounted in the recess, a drive shaft, means to rotate the driveshaft, said cam having splines therein engageable by the drive shaftwhereby said cam is rotated with the drive shaft, said drive shaft beinglongitudinally adjustable at the body to engage and disengage the cam.

5. A hand tool, comprising a body, a vibrating shaft mounted in thebody, tool chucks on the shaft, said shaft having recess formed therein,a cam mounted in the recess, a drive shaft, means to rotate the driveshaft, said cam having splines therein engageable by the drive shaftwhereby said cam is rotated with the drive shaft, said drive shaft beinglongitudinally adjustable at the body to engage and disengage the cam,said vibrating shaft having chucks on both ends thereof, and a chuck onthe upper end of the drive shaft.

6. A hand tool comprising a body, a shaft mounted for oscillatingmovement in the body, a drive shaft extending transversely of thefirstnamed shaft, said drive shaft extending through the first-namedshaft, a cam engaging the rstnamed shaft, said drive shaft being adaptedand arranged to rotate the cam whereby the firstnamed shaft isoscillated, and disengageable means connecting the drive shaft and thecam. WILLIAM P. WEST. FRED W. OPP- all

